BR6 + 100 shot...Plug Gap???
BR6 + 100 shot...Plug Gap??? I have a bolt on car and im installing the new BR6EFs for the 100 dry shot. I searched and I cant find a good answer on what to gap these plugs at for my setup. If someone who knows what there talking about please point me in the right direction. I wanna get these installed sometime today lol Thanks!
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Joined: Dec 2007
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From: Eagle River, Alaska
You should read this first. You'll change your mind about running 6's.
http://www.ngksparkplugs.com/docs/te...de_Affects.pdf
My black car went a best of 10.00 on the 100 shot with 6's. I found this from NGK saying to go one heat range colder for every additional 75hp of spray. With the only change being made, I put in the br7ef. My 100 shot went a new best of 9.89 in the quarter.
br6 are good up to 75hp shot
br7ef are good up to a 150 shot
http://www.ngksparkplugs.com/docs/te...de_Affects.pdf
My black car went a best of 10.00 on the 100 shot with 6's. I found this from NGK saying to go one heat range colder for every additional 75hp of spray. With the only change being made, I put in the br7ef. My 100 shot went a new best of 9.89 in the quarter.
br6 are good up to 75hp shot
br7ef are good up to a 150 shot
Last edited by Frozen WS6; Mar 12, 2011 at 11:32 PM.
I have a bolt on car and im installing the new BR6EFs for the 100 dry shot. I searched and I cant find a good answer on what to gap these plugs at for my setup. If someone who knows what there talking about please point me in the right direction. I wanna get these installed sometime today lol Thanks!
If I understand correctly you are supposed to reduce the gap from factory specified gap by .004 for every 50 HP you add this also includes what HP you have added NA. Example if you added 50 HP NA and 100 HP on nitrous you should reduce the gap from .060 - .012 = .048 gap (3 ea. X .004 = .012).
The information I have been using also said it is better to be safe and go a little narrower than wide since the gap tends to gradually widen as the plugs age so just in case in the example above they would suggest to use .044 to .046 as the gap!
I would think that a .035 gap is too tight for you application! There does not appear to me to be enough evidence to warrant a .035 gap for your application.
I hope this helps!
N2
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Most likely, the headers/ory threw your a/f off, so you may need a tune. Check your plug wires to make sure they're snapped completely on. Also, the NGKs have a screw-on tip that tends to get loose. Tighten if necessary.
Any time you change exhaust or injectors or intakes. It throws the tune off. Do not spray it till you get it tuned it could be running rich or lean. GOOD WAY TO BLOW YOUR MOTOR UP.
